Is this a joke? None of the crap you say makes any sense then you post this horrific shilling for the central banks statement LOL. The further you abstract money from barter the bigger a scam it is. Using a physical, commodity based currency (noble metals in native coin format - you know, like gold coins, silver coins, copper coins, etc) is about as close as it gets to barter, which is why it's generally the only non-scam monetary system.
Pure barter was PROVED by John Nash to be not optimal for all parties involved.
And using a physical, commodity based currency like noble metals is NOT pure barter, thus everything you typed is completely irrelevant! It's the smallest abstraction away from barter needed in order to maintain things like removal of counter party risk, durability, divisibility, fungibility, portability, etc. I don't want to hear you lies about how bitcoin is the 2nd coming of god as money when it's not even fungible. Most of you guys are either delusional or serial liars.
No, bitcoin is not fungible even if you tumble it:
CT and schnorr sigs will make btc fungible.
Cryptocurrency is NOT fungible. You're trying to make believe that if coins can be tumbled it's somehow fungible but there is more to it than that. If anything about the protocol at all can be altered via a strongman or banana republic voting to take over it's exposed power vacuum it's not fungible.
Money = has objective, static traits
Currency = random arbitrary bullshit some guy makes up and constantly fiddles with like fiat or bitcoin. If it's possible for your money to "hard fork", or randomly morph from one thing to another, it's not fungible, and hence not money. In that circumstance you are involved in some type of scheme with a schemer ruling over you.
It doesn't matter if said forks are orchestrated by a banana republic of miners in a voting process. There is no Nash equilibrium in cryptocurrency, only a power vacuum to be filled by a top down hierarchy or strongman. To escape this master and servant hierarchy you have to use real money that cannot be altered or tampered with by third parties.